506389136 has 40 divisors (see below), whose sum is σ = 1090537344. Its totient is φ = 225829760.

The previous prime is 506389133. The next prime is 506389151. The reversal of 506389136 is 631983605.

It is a junction number, because it is equal to n+sod(n) for n = 506389093 and 506389102.

It is not an unprimeable number, because it can be changed into a prime (506389133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17816 + ... + 36471.

Almost surely, 2^506389136 is an apocalyptic number.

It is an amenable number.

506389136 is an abundant number, since it is smaller than the sum of its proper divisors (584148208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506389136 is a wasteful number, since it uses less digits than its factorization.

506389136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54359 (or 54353 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 506389136 is about 22503.0916986978. The cubic root of 506389136 is about 797.0669345509.

The spelling of 506389136 in words is "five hundred six million, three hundred eighty-nine thousand, one hundred thirty-six".